This part is a kind of semiconductor called 1N5059.

Function of this product has Controlled avalanche rectifiers.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET handbook, 2 columns M3D116 1N5059 to 1N5062 Controlled avalanche rectifiers Product specification Supersedes data of April 1992 File under Discrete Semiconductors, SC01 1996 Jun 19 Philips Semiconductors Product specification Controlled avalanche rectifiers FEATURES • Glass passivated • High maximum operating temperature • Low leakage current • Excellent stability • Guaranteed avalanche energy absorption capability • Available in ammo-pack. DESCRIPTION 1N5059 to 1N5062 Rugged glass package, using a high temperature alloyed construction. 2/3 page k (Datasheet) LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VRRM 1N5059 1N5060 1N5061 1N5062 VRWM crest working reverse voltage 1N5059 1N5060 1N50 [ ... ]

1N5059 PDF Datasheet Download